Hello everyone I tried to use clust function using "hclustWard" clustering method The distance mesaured I have used is "rf" The data used is in the form of data frame (it is not a distance matrix) - sd.df The piece of code I have used is: c1 <- clust(sd.df,k=6,method="hclustWard",distMethod="rf") But I get the following error message, Error in if (n < 2) stop("must have n >= 2 objects to cluster") : argument is of length zero Could any one help me with this? Also I tried to check the code of clust to find out where this error message appears in the code and I could not find it. Please let me know how can I make the clust work for "hclustWard" method. Thanks! Anirudh Kondaveeti ---------------------------- [[alternative HTML version deleted]]